private MContext getParentWithContext(MUIElement part) {
MElementContainer<MUIElement> parent = part.getParent();
MUIElement intermediate = parent;
if (intermediate == null) {
intermediate = part;
} else {
while (parent != null) {
if (parent instanceof MContext) {
if (((MContext) parent).getContext() != null) return (MContext) parent;
}
intermediate = parent;
parent = parent.getParent();
}
}
MPlaceholder placeholder = modelService.findPlaceholderFor(getWindow(), intermediate);
parent = placeholder.getParent();
while (parent != null) {
if (parent instanceof MContext) {
if (((MContext) parent).getContext() != null) return (MContext) parent;
}
parent = parent.getParent();
}
return null;
}
private void resetPerspectiveModel(
MPerspective persp, MWindow window, boolean removeSharedPlaceholders) {
if (persp == null) {
return;
}
if (removeSharedPlaceholders) {
// Remove any views (Placeholders) from the shared area
EPartService ps = window.getContext().get(EPartService.class);
List<MArea> areas = findElements(window, null, MArea.class, null);
if (areas.size() == 1) {
MArea area = areas.get(0);
// Strip out the placeholders in visible stacks
List<MPlaceholder> phList = findElements(area, null, MPlaceholder.class, null);
for (MPlaceholder ph : phList) {
ps.hidePart((MPart) ph.getRef());
ph.getParent().getChildren().remove(ph);
}
// Prevent shared stacks ids from clashing with the ones in the perspective
List<MPartStack> stacks = findElements(area, null, MPartStack.class, null);
for (MPartStack stack : stacks) {
String generatedId = "PartStack@" + Integer.toHexString(stack.hashCode()); // $NON-NLS-1$
stack.setElementId(generatedId);
}
// Also remove any min/max tags on the area (or its placeholder)
MUIElement areaPresentation = area;
if (area.getCurSharedRef() != null) {
areaPresentation = area.getCurSharedRef();
}
areaPresentation.getTags().remove(IPresentationEngine.MAXIMIZED);
areaPresentation.getTags().remove(IPresentationEngine.MINIMIZED);
areaPresentation.getTags().remove(IPresentationEngine.MINIMIZED_BY_ZOOM);
}
}
// Remove any minimized stacks for this perspective
List<MTrimBar> bars = findElements(window, null, MTrimBar.class, null);
List<MToolControl> toRemove = new ArrayList<>();
for (MTrimBar bar : bars) {
for (MUIElement barKid : bar.getChildren()) {
if (!(barKid instanceof MToolControl)) {
continue;
}
String id = barKid.getElementId();
if (id != null && id.contains(persp.getElementId())) {
toRemove.add((MToolControl) barKid);
}
}
}
for (MToolControl toolControl : toRemove) {
// Close any open fast view
toolControl.setToBeRendered(false);
toolControl.getParent().getChildren().remove(toolControl);
}
}
@Override
public void hideLocalPlaceholders(MWindow window, MPerspective perspective) {
List<MPlaceholder> globals =
findElements(window, null, MPlaceholder.class, null, OUTSIDE_PERSPECTIVE | IN_SHARED_AREA);
// Iterate across the perspective(s) removing any 'local' placeholders
List<MPerspective> persps = new ArrayList<>();
if (perspective != null) {
persps.add(perspective);
} else {
persps = findElements(window, null, MPerspective.class, null);
}
for (MPerspective persp : persps) {
List<MPlaceholder> locals =
findElements(persp, null, MPlaceholder.class, null, IN_ANY_PERSPECTIVE);
for (MPlaceholder local : locals) {
for (MPlaceholder global : globals) {
if (global.getRef() == local.getRef()) {
local.setToBeRendered(false);
MElementContainer<MUIElement> localParent = local.getParent();
setStackVisibility(localParent);
}
}
}
}
}
private Object safeCreateGui(MUIElement element) {
// Obtain the necessary parent widget
Object parent = null;
MUIElement parentME = element.getParent();
if (parentME == null) parentME = (MUIElement) ((EObject) element).eContainer();
if (parentME != null) {
AbstractPartRenderer renderer = getRendererFor(parentME);
if (renderer != null) {
if (!element.isVisible()) {
parent = getLimboShell();
} else {
parent = renderer.getUIContainer(element);
}
}
}
// Obtain the necessary parent context
IEclipseContext parentContext = null;
if (element.getCurSharedRef() != null) {
MPlaceholder ph = element.getCurSharedRef();
parentContext = getContext(ph.getParent());
} else if (parentContext == null && element.getParent() != null) {
parentContext = getContext(element.getParent());
} else if (parentContext == null && element.getParent() == null) {
parentContext = getContext((MUIElement) ((EObject) element).eContainer());
}
return safeCreateGui(element, parent, parentContext);
}
/**
* Returns the parent container of the specified element. If one cannot be found, a check will be
* performed to see whether the element is being represented by a placeholder, if it is, the
* placeholder's parent will be returned, if any.
*
* @param element the element to query
* @return the element's parent container, or the parent container of the specified element's
* current placeholder, if it has one
*/
private MElementContainer<MUIElement> getParent(MUIElement element) {
MElementContainer<MUIElement> parent = element.getParent();
if (parent == null) {
MPlaceholder placeholder = element.getCurSharedRef();
if (placeholder == null) {
@SuppressWarnings("unchecked")
MElementContainer<MUIElement> container = (MElementContainer<MUIElement>) getContainer();
return findContainer(container, element);
}
return placeholder.getParent();
}
return parent;
}
private void adjustPlaceholder(MPart part) {
if (isShared(part)) {
MPlaceholder placeholder = part.getCurSharedRef();
// if this part doesn't have any placeholders, we need to make one
if (placeholder == null
// alternatively, if it has one but it's not in the current container, then we
// need to spawn another one as we don't want to reuse the same one and end up
// shifting that placeholder to the current container during the add operation
|| (placeholder.getParent() != null && !isInContainer(placeholder))) {
placeholder = createSharedPart(part);
part.setCurSharedRef(placeholder);
}
}
}
/**
* Records the specified parent part's selected element in the activation history if the parent is
* a stack.
*
* @param part the part whose parent's selected element should be checked for activation history
* recording
*/
private void recordStackActivation(MPart part) {
MElementContainer<? extends MUIElement> parent = part.getParent();
if (parent instanceof MGenericStack) {
recordSelectedActivation(parent);
} else if (parent == null) {
MPlaceholder placeholder = part.getCurSharedRef();
if (placeholder != null) {
parent = placeholder.getParent();
if (parent instanceof MGenericStack) {
recordSelectedActivation(parent);
}
}
}
}
@Override
public Object getUIContainer(MUIElement element) {
if (element instanceof MToolBar) {
MUIElement container = (MUIElement) ((EObject) element).eContainer();
MUIElement parent = container.getParent();
if (parent == null) {
MPlaceholder placeholder = container.getCurSharedRef();
if (placeholder != null) {
return placeholder.getParent().getWidget();
}
} else {
return parent.getWidget();
}
}
return super.getUIContainer(element);
}
@Override
public void handleEvent(Event event) {
// no need to do anything if we have no listeners
if (!listeners.isEmpty()) {
Object oldSelected = event.getProperty(UIEvents.EventTags.OLD_VALUE);
if (oldSelected instanceof MPlaceholder) {
oldSelected = ((MPlaceholder) oldSelected).getRef();
}
MPlaceholder placeholder = null;
Object selected = event.getProperty(UIEvents.EventTags.NEW_VALUE);
if (selected instanceof MPlaceholder) {
placeholder = (MPlaceholder) selected;
selected = placeholder.getRef();
}
MPart oldSelectedPart = oldSelected instanceof MPart ? (MPart) oldSelected : null;
MPart selectedPart = selected instanceof MPart ? (MPart) selected : null;
if (oldSelectedPart != null && getParts().contains(selectedPart)) {
firePartHidden(oldSelectedPart);
}
if (selectedPart != null
&& selectedPart.isToBeRendered()
&& getParts().contains(selectedPart)) {
// ask the renderer to create this part
if (placeholder == null) {
if (selectedPart.getParent().getRenderer() != null) {
engine.createGui(selectedPart);
firePartVisible(selectedPart);
firePartBroughtToTop(selectedPart);
}
} else if (placeholder.getParent().getRenderer() != null) {
engine.createGui(placeholder);
firePartVisible(selectedPart);
firePartBroughtToTop(selectedPart);
}
}
}
}
@Override
public void bringToTop(MPart part) {
if (isInContainer(part)) {
MUIElement currentElement = part;
MElementContainer<MUIElement> parent = part.getParent();
if (parent == null) {
currentElement = modelService.findPlaceholderFor(getWindow(), part);
parent = currentElement.getParent();
}
// If the part is in the same stack as the currently active part then activate it
// instead
MElementContainer<MUIElement> activeParent =
activePart != null ? activePart.getParent() : null;
if (activePart != null && activeParent == null) {
MPlaceholder activePH = modelService.findPlaceholderFor(getWindow(), activePart);
if (activePH != null) {
activeParent = activePH.getParent();
}
}
if (parent == activeParent && part != activePart) {
activate(part);
return;
}
MUIElement oldSelectedElement = parent.getSelectedElement();
delegateBringToTop(part);
// check to make sure that the currently selected element is actually valid
if (oldSelectedElement != currentElement
&& parent.getChildren().contains(oldSelectedElement)
&& parent instanceof MGenericStack<?>) {
if (oldSelectedElement instanceof MPlaceholder) {
oldSelectedElement = ((MPlaceholder) oldSelectedElement).getRef();
}
internalFixContext(part, oldSelectedElement);
}
}
}
private void replacePlaceholder(MPlaceholder ph) {
MPart part = createModelElement(MPart.class);
part.setElementId(ph.getElementId());
part.getTransientData()
.put(
IPresentationEngine.OVERRIDE_ICON_IMAGE_KEY,
ImageDescriptor.getMissingImageDescriptor().createImage());
String label = (String) ph.getTransientData().get(TAG_LABEL);
if (label != null) {
part.setLabel(label);
} else {
part.setLabel(getLabel(ph.getElementId()));
}
part.setContributionURI(COMPATIBILITY_VIEW_URI);
part.setCloseable(true);
MElementContainer<MUIElement> curParent = ph.getParent();
int curIndex = curParent.getChildren().indexOf(ph);
curParent.getChildren().remove(curIndex);
curParent.getChildren().add(curIndex, part);
if (curParent.getSelectedElement() == ph) {
curParent.setSelectedElement(part);
}
}